Earthquake record › seal of 2026-08-09

The USGS Feed as Sealed on 2026-08-09

239 events, exactly as the feed presented them at the moment we read it. Values on this page are what USGS asserted on this date — some of them have since been revised, and this page deliberately does not follow those revisions.

← 2026-08-08

What this archive is, exactly. The USGS all_day feed holds the last 24 hours and is overwritten in place. We seal one dated copy of it per day. An event that appeared in the feed and was superseded between two of our seals is not in this archive at all. These pages are a record of what USGS asserted at each seal — they are not a complete catalogue of earthquakes, and nothing here should be read as one.

81 of these events were already present in an earlier seal — the feed window overlaps our seal interval, so an event near the boundary is read twice. They are the only events in which a revision is detectable, and they are counted, not deduplicated away.

Review status as sealed: automatic 186, reviewed 53. An automatic value is a machine solution USGS may still revise; a reviewed value has had a human look at it. Which one you are reading matters more than the magnitude itself.

By magnitude

MagnitudeEvents
Below M1.047
M1.0 – M1.9116
M2.0 – M2.947
M3.0 – M3.914
M4.0 – M4.912
M5.0 and above3
No magnitude published0

19 of 239 events in this seal were sealed at or above M3.5 — the magnitude Texas Railroad Commission seismic-response conditions are written around. That is a count of what the feed said, not a determination about any permit, operator or well.

Get told when the record changes for your area

USGS publishes the last day and overwrites it, then revises events in place — automatic becomes reviewed, magnitudes move, and the old value stops existing everywhere. We seal a dated copy every day. Leave your email and we'll tell you when an event in your area is revised after the fact, with what it said before.

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Largest events in this seal

MagnitudePlace, as publishedReview statusSeal
M5.6042 km E of Noda, Japanreviewed2026-08-09
M5.20Galapagos Triple Junction regionreviewed2026-08-09
M5.00180 km NW of Sabang, Indonesiareviewed2026-08-09
M4.90237 km E of Levuka, Fijireviewed2026-08-09
M4.9068 km ESE of Atka, Alaskareviewed2026-08-09
M4.80northern Mid-Atlantic Ridgereviewed2026-08-09
M4.70Kermadec Islands regionreviewed2026-08-09
M4.6047 km WNW of Lata, Solomon Islandsreviewed2026-08-09
M4.6012 km W of Chambara, Perureviewed2026-08-09
M4.6096 km S of Sarangani, Philippinesreviewed2026-08-09
M4.60southeast of Easter Islandreviewed2026-08-09
M4.5092 km SSW of Sarangani, Philippinesreviewed2026-08-09
M4.4017 km ENE of Nurdağı, Turkeyreviewed2026-08-09
M4.3016 km E of Amakusa, Japanreviewed2026-08-09
M4.3046 km NE of Masjed Soleymān, Iranreviewed2026-08-09
M3.9084 km ESE of Chignik, Alaskareviewed2026-08-09
M3.7961 km NE of Cruz Bay, U.S. Virgin Islandsreviewed2026-08-09
M3.73132 km N of Charlotte Amalie, U.S. Virgin Islandsreviewed2026-08-09
M3.7042 km E of Pedro Bay, Alaskareviewed2026-08-09
M3.3831 km NNW of Covelo, CAautomatic2026-08-09

Where they were, as USGS wrote it

State or territoryEvents
California101
Alaska70
Texas17
Hawaii10
Oklahoma7
Puerto Rico4
Oregon3
Washington3
New Mexico2
Utah2
the U.S. Virgin Islands2
Nevada1
Ohio1

16 of 239 events in this seal carry a place tail we do not map to a US state — most of them are outside the US. They are counted here and left unassigned rather than guessed at.

How this seal was collected

SealWe read atSource last modifiedHTTPSource
2026-08-092026-08-09T13:43:18+00:00Sun, 09 Aug 2026 13:43:00 GMT200source file
Days we did not seal. 46 seals span 48 calendar days, so these days inside the span have no sealed copy: 2026-07-04, 2026-07-15. A missing day means we did not read the feed. It does not mean nothing happened, and those dates return a 404 here rather than a page reading zero.
One seal is wider than the others. These dates were collected more than once: 2026-07-16 (2 runs, 00:48 and 13:42 UTC). A day with two runs covers more than 24 source-hours, so its event count is larger for a collection reason and not a seismic one. Do not read it as a busy day.

Compiled from dated copies of the U.S. Geological Survey's public all_day realtime feed (a work of the US government, in the public domain). Values are reproduced exactly as USGS published them on the date shown and may since have been revised; USGS is the authority on the current value of any event. These pages are provided for informational purposes only, carry no warranty of accuracy or completeness, and are not an earthquake warning, a safety notice, or engineering advice. Always verify against the USGS Earthquake Hazards Program before relying on any figure.

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